\begin{tabular}
	\multicolumn{8}{c}{\textbf{group 1}}\\
	\midrule
	\multirow{6}{*}{\textbf{design1}}
	 & pos1 & 15.05 & 1.06 & 0.145 & -3.41 & -0.28 & 0.610\\
	 & pos2 & 9.20  & 0.65 & 0.258 & -4.02 & -0.32 & 0.627\\
	 & pos3 & 32.92 & 2.30 & 0.011 & 4.87  & 0.40  & 0.344\\
	 & pos4 & 6.46  & 0.69 & 0.247 & 3.94  & 0.45  & 0.327\\
	 & pos5 & 10.99 & 0.87 & 0.191 & 0.41  & 0.03  & 0.486\\
	 & pos6 & 36.70 & 2.20 & 0.014 & 30.20 & 1.94  & 0.026\\
\end{tabular}
